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16 oz metal can of copper anti-seize paste

Loctite

Loctite Copper Anti-Seize Compound 16 oz Can -20°F 1800°F

SKU CH-309D-R1E2G

Copper anti-seize paste in a 16 oz can rated from -20 °F to 1800 °F for high-temperature metal assemblies

  • Prevents seizing up to 1800°F with copper formula
  • Protects threads down to -20°F in extreme cold
  • 16 oz can supplies paste for many applications
  • Non-flammable composition adds safety in hot environments
  • California Proposition 65 warning included for compliance

Copper Anti-Seize Compound 16 oz

Loctite copper anti-seize compound is a general-purpose paste supplied in a 16 oz can for automotive and machine-shop use. It prevents seizing, galling and corrosion on threaded fasteners and sliding surfaces. Mechanics and maintenance technicians apply it during assembly to ensure reliable disassembly later.

Temperature range and non-flammable formula

The compound withstands continuous exposure from -20°F to 1800°F and is non-flammable, so it remains effective in high-heat exhaust, brake and manifold applications. Copper particles provide lubrication under extreme pressure while resisting washout. It frees the builder from using separate high-temperature greases for each joint.

16 oz can covers typical maintenance needs

The 16 oz container provides enough paste for repeated workshop tasks such as spark-plug threads, oxygen-sensor fittings and flange bolts. It runs out when a fleet or heavy-equipment shop requires bulk-volume dispensing. California Proposition 65 warning applies because the product contains a listed chemical.

Highlights

  • Prevents seizing up to 1800°F with copper formula
  • Protects threads down to -20°F in extreme cold
  • 16 oz can supplies paste for many applications
  • Non-flammable composition adds safety in hot environments
  • California Proposition 65 warning included for compliance

Specifications

BrandLoctite

Questions about this item

At what temperature does the copper anti-seize compound stop protecting threads under sustained high-heat exposure?

The compound is rated to 1,800 °F, so it maintains its anti-seize properties up to that temperature during continuous use.

Does the paste produce noticeable fumes or heat when applied and left to cure in a workshop?

The product is non-flammable and contains no volatile solvents that would generate fumes or heat during normal application and curing.

What thread size or fitting standard must the hardware already have for this 16 oz copper paste to be effective?

The compound works on any standard metal threads — coarse, fine, metric or imperial — so no specific thread standard is required beyond clean metal surfaces.

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